Log4j Format Specification: Difference between revisions

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=Pattern Layout=
=Pattern Layout=
{{External|http://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout}}
The pattern layout is defined by a ''pattern string'', where various element of a log event can be specified and the way they are intended to be displayed in a log file described. The format of the result depends on the ''conversion pattern'', which is closely related to the conversion pattern of the [[printf]] function in C.


==Format Modifier==
==Format Modifier==


A ''format modifier'' modifies how the data generated by the pattern layout element
A ''format modifier'' modifies how the data generated by the pattern layout element

Revision as of 17:33, 15 November 2017

External

Internal

Overview

log4j calls its output format layout. Most commonly used is the pattern layout.

Pattern Layout

http://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout

The pattern layout is defined by a pattern string, where various element of a log event can be specified and the way they are intended to be displayed in a log file described. The format of the result depends on the conversion pattern, which is closely related to the conversion pattern of the printf function in C.

Format Modifier

A format modifier modifies how the data generated by the pattern layout element